Winfield denton-



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WINFIELD DENTON, OF IOWA CITY, IQWA.

Leners Patent No. 95,439, dated october 5,1869.

IMIPROVED HAY-DERRICK.

'lhe Schedule referred to in the.; Letten Patent and making part of th same.

To all whom it may concern Be it known that I, WINFIELD DnNToN, of Iowa City, Johnson county, State of Iowa, have invented a new and useful Improvement in Hay-Derrick; and I do hereby declare that the following is a. full, clear, and exact description thereof, which will ena-ble others skilled in the art 'to make and use the same, reference being had to the accompanying drawings, formA ing part of this specification.

This invention relates to a new and useful improvement in derricks or loaders l'or loading hay, and consists inl lthe construction and arrangement hereinafter described.

The accompanying drawing represents an elevation of the derrick.

A represents the base, which consists of a pair of runners, connected together by transverse slats, the middle of which supports the standard B. This standard is properly supported in an upright position bythe braces C and D.

E is the derrick-beam, which is secured to the top of' the standard B by a swivel-clevis, as seen at F.

The short end ofthe beam E is connected with the base A, near the lower end of the standard B, by thc rod G, which is jointed to the beam and to the base, so that it will accommodate itself to the position of the beam, as the latter swings around to bring the fork over the stack.

H is the hoisting-rope, which isconnected with the hay-fork.

This rope passes over the self-adjusting pulley I, which is suspended from the elevated end of the. beam. From this pulley it passes through the swivel-clevis at F, over the top of the standard, and from thence over the self-adjusting pulley J, which is suspended trom the lower end of the beam.

From thence the rope descends, and passes around another self-adjusting pulley, K, attached to a point on the standard, near the bottom end.

From this pulley the rope extends parallel with the ground, when extended as when in use.

The single-treeL is attached to its end, to winch the power is applied for hoisting.

M is a guide-rope, by which the hoisting-mpc Il is wnnected witlrthe upper end of the rod (lr.

The beam E is supported over its bearing A Fully means ofthe brace-rod N.

By this arrangement of the hoisting-rope, with the aid of the rod G, the derrick is quite self-supporting, while, bythe direction given theI horse, or the horizontal portion ofthe hoisting-rope, the load suspended from the beam may beswnng over the centre of the sta-ck and dumped.

The arrangement and operation are so plainly shown in the drawing, that further description is deemed unnecessary.

Having thus described my invention,

What [claim as new, and desire to secure by Let ters Patent, is

l. In combination with the base A and standard B, the beam E, rod G, pulleys J and K, and rope M, whereby, by means ot' the hoisting-rope H, and rod G, the dei-rick is made seltlsupporting and self-adn justing, substantially as and for the purposes described.

2. In combination with the hay-derriek, constructed as described, the hoisting-rope, the guide-rope M, and the arrangement of the self-adjusting pulleys J and K, substantially described.

VVINFIELD DENION.

Witnesses:

ROBT. BENTON, A. T. McELwAxN. 

